Water Filter for the LG LSC21935TT (LT500P)

LSC21935TT specifics — where the filter actually lives

Finding the bay is the easy part — this chassis puts it at the base of the fresh-food compartment in most side-by-side builds — grille or lower rear, so expect to clear one shelf edge before you have working room. Mechanically the LSC21935TT uses a push-and-twist cartridge: two motions, one orientation, five minutes including the cleanup.

Practical notes from the install forums: expect dribble at the bay on removal even with the supply off, and remember the indicator will not self-clear — hold the reset control. Prefix literacy pays here: when LG stamps LS on the plate it is sorting the machine into the side-by-side class — same water path, same cartridge, different cabinet. TT is finish coding: handles, colors, panel options — none of it reaches the filter bay.

LS vs LF — what the prefix tells you

The catalog pairs LS with LF, and the split matters at order time: split by cabinet mission (side-by-side versus French-door), joined by cartridge line — that is the LS/LF story. call it a 21 cubic feet box — which is why this cartridge works for a living rather than sitting decorative.

Swap it in 5 minutes

• Press the release (if fitted), twist the old cartridge free, and pull it from the header.
• Wet the new cartridge’s o-ring with cold tap water so it seats without dragging.
• Push the cartridge square onto the header, then give it the locking quarter turn.
• Run two gallons through the dispenser to flush carbon fines, then hold the filter-reset control until the status light clears.

What this filter takes out of your water

Coverage above lists what the standard addresses, not a performance claim for any specific cartridge — removal claims vary by certificate, so check the NSF listing for the exact part number you are buying.

LSC21935TT filter questions